Door guide



Oct. 15, 1935.

T. 1.. DONAHIE DOOR GUIDE Invenfior 7740/46'6 L. DON/qH/E,

Filed March 17, 1932 I Patented Oct. 15, 1935 UNITED STATES PATENT OFFICE DOOR GUIDE New Jersey Application March 17,

3 Claims.

This invention is a guide for sliding doors which close over obstructions such as railroad tracks and the like. One of the objects is to provide a means for guiding large sliding doors which may be used where it is not possible to provide a continuous guideway. Another object is to construct such a means so that the doors may operate even though foreign matter becomes lodged in the guideways. Other objects will be understood from the following disclosure.

Having reference to the accompanying drawing:

Figure 1 is a front elevation of a pair of sliding doors, each provided with a guide constructed according to the present invention.

Figure 2 is a top plan of the guideway whose continuity is broken by railway tracks.

Figure 3 is an enlargement of a portion of the first figure, and

Figure 4 is a cross-section from the line IVIV in Figure 3.

In detail, these drawings show a pair of sliding doors I which close over a railroad track 2. These doors are rather large and would ordinarily be constructed with depending guides which move in a continuous guideway. Here, however, this is impossible because of the interfering tracks 2.

In this instance guideways 3 are provided in sections which are laid on either side of and between the rails of the track 2. These guideways have flared portions l wherever they abut the rails and are sunk beneath the floor level.

The doors I have a slot 5 centrally formed up 1932, Serial No. 599,560

in their bottom edges and a number of tongues 6 are pivoted in these slots and depend into the guideways 3. When the doors I are moved the tongues 6 will ride up over the rails and immediately drop back into the next guideway. This 5 action will also occur if any other obstruction such as ice or dirt becomes lodged in the guide- 'ways 3.

Although I have shown and described a specific form of my invention in accordance with the patl0 ent statutes, I do not intend to limit myself thereby except as defined by the following claims.

I claim:

1. In combination with a sliding door closing over an obstruction, guideways alined with and 15 beneath said door and laid on either side of said obstruction, and guides depending from said door into said guideways, said guides being pivotally carried by said door for swinging movement alined with the latters sliding direction.

2. A sliding door for closing over an obstruction, guideways alined with and beneath said door and laid on either side of said obstruction, a slot centrally formed up in the bottom edge of said door and tongues pivoted in said slot and depending into said guideways.

3. A sliding door for closing over an obstruction, guideways alined with and beneath said door and laid on either side of said obstruction, a slot centrally formed up in the bottom edge of said 30 door and tongues pivoted in said slot and depending into said guideways, said guideways flaring out wherever they abut said obstruction.

THOMAS L. DONAHIE. 

